Buckle.



BUCKLE. 7

APPLICATION FILED SEPT. I8. ma. 1,212,328, Patented Jam-16,1917.

' 2 SHEETS-SHEET 1.

BUCKLE. APPLI CATION FILED SEPT. 18, l9l3- Patented Jan. 16,1917.

2 SHEETSSHEET 2.

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ARTHUR corn, or LYON, FRANCE.

BUCKLE.

Application filed September 18, 1913.

To all whom it may concern Be it known that I, ARTHUR 0cm, a citizen of the French Republic, residing at Lyon, in France, have invented certain new and useful Improvements in Buckles, of which the following is a specification.

This invention relates to improvements in buckles.

The object of my invention is to provide a buckle which will be simple, smooth, light, thin and automatic in operation and which can be so used upon a belt or strap that the pressure may be adjusted to the exact amount required without danger of injury to the user or danger of tearing the belt or strap itself.

A further object of the invention is to provide a buckle for a strap by means of which objects may quickly be strapped in place or the strap loosened from the object by a simple movement of the parts.

A further object of this invention is to provide a buckle which can be used in surgical work for medical belts, bandages and the like, and is also well adapted for general use.

In describing my invention for purposes of illustration I will refer to the following figures in which the same reference characters refer to the same parts throughout, and in which,-Figure 1 is a front view of the buckle. Fig. 2 is a back view of Fig. 1. In these two figures the fixing of the device has not yet been efiected. Figs. 3 and 4 are similar views to Figs. 1 and 2 andshow the device fixed. Fig. 5 is a section on line A, A, of Fig. 1 and clearly shows the slight thickness of the device. Fig. 6 illustrates a modification of the form of construction of the invention. Figs. 7 to 11 illustrate the shapes of the various parts before being assembled.

The buckle comprises a plate 16 provided with a lateral extension 17 in which is an orifice 18 (Fig. 7). Fastened to one member of the strap is a button 19, the head 3 of which can be passed through orifice 18. Behind the extension 17 is a slidable plate 2 provided with an orifice 20 through which the shank 21 of the button 19 extends. The slide 2 engages the head 3 of the button by pressure alone. This latter cannot become disengaged except at the desire of the person using it. The slide 2 automatically obstructs the opening of the hole intended Specification of Letters Patent.

Patented J an. 16, 1917.

Serial No. 790,384.

for the head of the button and retains the head 3. v

To release the button it is suflicient to hold the buckle in one hand and with the other push back the button, the slide 2 pushed by the latter is brought to its initial point, whereupon its lugs 4, abut against the edge of plate 16, the holes 1 and 20 are superposed and the head of the button can pass out without effort. At the end of extension 17 a slightly turned up edge 27 of the thickness of the slide 2 prevents the same from coming ofl.

A cross member 5 extends across plate 16 of the buckle, the central strong part of said cross member is of half round shape on its two wide faces and of its two edges the one 6 is flat and the other 7 is rounded; the strong part is for providing resistance to the traction which it directly supports while allowing the strap 8 which turns around it and produces the pressure to slip; the strongest part is partly sunk in the aperture 22 of the plate 16, so that it is without harmful projection; the flat milled edge 6 by the traction of the strap 8 compresses the same against the transverse internal back edge 23 of the aperture 22 and prevents slipping of the strap; the greater the traction the more secure is this fastening. At each end of the cross member 5 is a guide groove 24, Fig. 8,

and a parallel tenon 10. p

The grooves 2 1'are intended to form housings for the partitions 9 between the aperture 22 of plate 16 and mortises 14: in said plate, and in the mortises 14 are housed the tenons 10. The thin ends 11 of the member 5 are turned around the plate 16 on its lateral sides and are folded downward and by this means give great strength to the buckle; the cross member 5 is thereby maintained square and cannot jam; it can slide with some friction on plate 16. For very small buckles the mortises and tenons above indicated are not necessary (see Figs. 6 and 11), the length of the cross piece 15 on buckles of small size being also reduced it cannot wedge, further the reduced size of the buckle does not allow the provision of a tenon and mortise. A locking bar 12 is rabbeted underneath longitudinally thus forming a flange 13 of the thickness of the buckle which in the open position of the buckle lies against the internal edge 25 of the aperture 22 of plate 16 which arrests it as shown in Fig. 1. The ends of the locking bar are bent over in the mortises 14 whereby the bar is held in position and can slide laterally.

The mortises 14 are extended beyond edge 25 of the aperture 22 in order that the looking bar can be pushed back sufiiciently far to allow unmasking of the aperture 22 so that the cross piece 5 can be moved from strap lying around member 5 by means of a thumb recess 26. The strap is pressed against said member 5 and the absolute and fixed arrest of the same is produced even if it is removed.

It can be understood that if in surgical cases the doctor has prescribed a certain constant pressure it will be easy to maintain it by means of the locking bar. To modify the pressure it is sufficient to push back the locking bar to its dead point proceeding reversely to the fixing movement, a thumb recess 27 being intended to facilitate this movement.

The improved buckle consisting of four pieces assembled together without rivets or pins cannot come undone or break with use.

The buckle is of very slight thickness, and its weight is insignificant.

In use when the tab or tractor is passed over the large cross piece, the double thick- 7 ness of the said tab largely counteracts the projection produced by the returned ends of the cross piece 5 and of the locking barf; 12 so that said projections cannot press on the flesh directly'or indirectly.

It can be seen that the improved buckle possesses numerous and valuable advantages unknown in the existing models.

With my improved buckle the disadvantage of ordinary buckles that they relax their grip when the tension is temporarily relaxed cannot arise, because in order to unfasten the buckle the slide must be pushed back to expose the opening which it covers. 7 It will also be noted that in the case of an article requiring frequent washing my improved device has the advantage that it is not sewn on, and can easily'be removed and re-attached.

What I claim as my invention and desire to secure by Letters Patent of the- United 7 States is v A buckle comprising in combination a plate having arectangular aperture and two parallel transverse slots, a slidable member around which one end ofthe strap is adapted to be looped arranged transversely to said plate and having its ends turned over the edgesthereof, a projection on each end of said transverse member engaging in the aforesaid slots, and a laterally slidable rabbeted locking bar having its ends engaging in said slots and adapted to be moved in one 7 direction to press the loop against said transverse member or in the other direction,

so that the rabbet thereof engages an edge of said plate whereby the strap is held against movement relatively to said plate and to said transverse member. 7

In witness whereof I have signed HGSSBS.

Witnesses V GASTON YEAUNIAUX, lMARIUS MERMAZ.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

. Washington, D. G.

this specification in the presence of two wit ARTHUR corn L 

